The German Instrument of Surrender was a legal document effecting the unconditional surrender of the remaining German armed forces to the Allies, ending World War II in Europe. It was signed at 22:43 CET on 8 May 1945 and took effect at 23:01 CET on the same day.
The day before, Germany had signed another surrender document with the Allies in Reims in France, but it was not recognized by the Soviet Union, which demanded among other things that the act of surrender should take place at the seat of government of Nazi Germany from where German aggression had been initiated. Therefore, another document needed to be signed. In addition, immediately after signing the first document, the German forces were ordered to cease fire in the west and continue fighting in the east.